WIP (8) feedback

[Joshua_Kennedy]

@ivan.galik

-pushpull like in sketchup, support collapsible breps (when you make hole in a wall and move some face of the hole to the end of brep resulting in zerothickness region should automatically perform boolean difference and delete zero thickness *optionally or have a prompt what should happen)

Rhino WIP Feature: PushPull Workflow

Hi all, In the Rhino WIP several new enhancements and additions have been made to create a PushPull workflow. The new enhancements ease the manipulation of solids without needing to trim or split as well as working in perspective views. [Headliner_New] Ortho Z Snap Ortho mode has been expanded to also allow snapping to the Z direction of the current construction plane. [Ortho_Z] Gumball Closed Extrude Extruding closed curves with the gumball can now create closed solids by selecting the f…